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Loans and Investments - Schedule of Non-Performing Loans (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2024	Dec. 31, 2023
Loans and Investments
UPB	$ 592,543	$ 427,929
Loans and investments, gross	11,873,208	12,615,006
Non-performing loans
Loans and Investments
UPB	676,250	274,152
Greater Than 60 Days Past Due | Non-performing loans
Loans and Investments
Loans and investments, gross	676,250	274,152
Multifamily
Loans and Investments
UPB	437,108	272,494
Multifamily | Non-performing loans
Loans and Investments
UPB	673,630	271,532
Multifamily | Greater Than 60 Days Past Due | Non-performing loans
Loans and Investments
Loans and investments, gross	673,630	271,532
Commercial
Loans and Investments
UPB	1,700	1,700
Commercial | Non-performing loans
Loans and Investments
UPB	1,700	1,700
Commercial | Greater Than 60 Days Past Due | Non-performing loans
Loans and Investments
Loans and investments, gross	1,700	1,700
Retail
Loans and Investments
UPB	19,520	19,520
Retail | Non-performing loans
Loans and Investments
UPB	920	920
Retail | Greater Than 60 Days Past Due | Non-performing loans
Loans and Investments
Loans and investments, gross	$ 920	$ 920

X

- Definition

Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

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